<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="./css/1.css">
  <!-- <link rel="stylesheet" media="print" href="./css/2.css"> -->
  <!-- <link rel="stylesheet" media="(max-width:600px)" href="./css/2.css"> -->

  <style media="print">
    h2 {
      background-color: aquamarine;
    }
  </style>
</head>

<body>

  <h1>hello h1</h1>
  <h2>hello h2</h2>

</body>

</html>